Lee Nan-young, who is famous for ‘Tears in Mokpo,’ made her debut at OK Records in the 1930s, and married Kim Hae-song, an acclaimed, genius composer at that time. In the year of liberation in 1945, 'KPK Musical Troupe' won popularity with the duo of Lee Nan-young and Kim Hae-song, but Kim got kidnapped by North Korea. During the Korean War, Lee made Korea’s first girl vocal group ‘Kim Sisters’ with her daughters Suk-ja, Ae-ja and her niece Min-ja who inherited their parents’ musical talent. Thanks to Lee’s desperate effort and intense train...